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Finding the Fourth Proportional to 71,456.70, 98,610.84 and 39,626.04

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Solution

The fourth proportional to 71,456.70, 98,610.84 and 39,626.04 is: 54,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,456.70 : 98,610.84 = 39,626.04 : x
  2. Step 2: Convert to fraction form
    71,456.70/98,610.84 = 39,626.04/x
  3. Step 3: Cross multiply
    71,456.70x = 98,610.84 × 39,626.04
  4. Step 4: Simplify right side
    71,456.70x = 3,907,557,090.27
  5. Step 5: Solve for x
    x = 3,907,557,090.27/71,456.70
  6. Step 6: Final answer
    x = 54,684.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.